Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL FARMASIMED (JFM)
St. Rahmadani
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Medicine & Pharmacology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
PENGEMBANGAN PETUNJUK PRAKTIKUM BIOLOGI DAN INSTRUMEN PENILAIAN KINERJA PRAKTIKUM BERBASIS MODEL PEMBELAJARAN KOOPERATIF DAN EFEKTIVITASNYA TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA SMA/MA KELAS XI St. Rahmadani; Jamaluddin -; Lalu Zulkifli
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 2 (2015): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i2.13

Abstract

The aims of this study were: 1) to develop a biology practical guidance based on TGT cooperative models equipped with practical performance assessment instrument; 2) to determine the characteristics and suitability of products than have been developed; 3) to know it’s effectiveness in critical  thinking abilities on biology subject of students in class XI. Product development process in this study by following Borg and Gall’s Development. The result of the expert validation by 3 validators showed that each of  the average score in biology practical guidance based on TGT and practical performance assessment instrument were 4,41 and 4,48 and categorized as “very good”. Limited testing conducted on 10 students with high, medium, and low ability. The result of limited testing showed that each of percentage score average in biology practical guidance based on TGT and practical performance assessment instrument were 82,67% and 83,33% and categorized as “very good”. Field trial testing using a pre-test post-test control group design. The data of critical  thinking abilities are tested in this study consist of 5 indicator skills:  (1) formulate the problem; (2) recognize the existence of a logical relationship between issues; (3) collect and collate information; (4) asses and evaluate the statement of facts; (5) Make some conclude were needed. Data analysis were performed  using two independent sample test formula by SPSS 20 for windows. The analysis showed that the critical  thinking abilities for indicator 1, 2, 3, and 5 of experimental group different from the control group, while the fourth indicator not different. Data analysis equipped with calculation of the value of n-gain to determine  the effectiveness of learning by using product that have been developed. The result of the data analysis showed that the value of n-gain in experimental groupis equal to 0,71 and categorized as “high”.
Formulation and Antibacterial Activity Test of Ethanol Extract Gel of Laruna Root (Chromolaena odorata L.) Against Staphylococcus aureus and Propionibacterium acnes St. Rahmadani; Awaluddin, Nurhikma; Awaluddin, Akbar
Jurnal FARMASIMED (JFM) Vol 7 No 1 (2024): Jurnal Farmasimed (JFM)
Publisher : Fakultas Farmasi Institut Kesehatan Medistra Lubuk Pakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35451/jfm.v7i1.2231

Abstract

Background: The formulation of gel preparations from laruna root extract (Chromolaena odorata L.) has been carried out using Na-CMC base accompanied by physical stability tests of the gel preparations. Objectives: to determine the physical stability of the laruna root extract gel preparation and its good concentration against Staphylococcus aureus and Propionibacterium acnes bacteria. Research method: The physical stability of the gel preparation was determined based on observations of changes in color, odor, shape, pH, uniformity, spreadability, and viscosity before and after storage for 6 cycles at temperatures of 4o C and 40oC. The pH test was carried out using a pH meter and viscosity measurements were carried out using a Brokfield viscometer. Results: The results of the study showed that the laruna root extract gel preparation was declared stable in the homogeneity indicator Results: The results showed that the gel preparation of laruna root extract could be said to be stable on homogeneity parameters where there were no solid particles in the preparation. Stable in good spreading power diameter, i.e. formulas 0, I, II, and III have a diameter of no more than 5-7 cm. For the results of measuring the viscosity of the gel preparation of laruna root extract, it is said to be stable because it is not more than 2000-4000 mPaS. For pH measurement, it is said to be stable because it has a pH in accordance with the quality requirements of skin preparations, which is 4.5-8.0. Conclusion: In the antibacterial activity test, a good clear zone result was obtained at a concentration of 0.3%.
Co-Authors Awaluddin, Akbar Ester Ayu Hasria Alang Jamaluddin - Lalu Zulkifli Nurhikma Awaluddin Sitti Marlina Syahruni Karim